January 27, 2011 - The roles of behavior culture in...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
1. Extreme ability to shift foods based on abundance - Agriculture: self-reproducing resource --> abiotic resource This turns self-reproducing resources into "abiotic" (renewable but not self-reproducing) Reproducing is independent of population size Ability to control the growth of own resources - Ability to improve ability to extract resources and spread to others - How to culture and adaptive behavior change population dynamics (appendix 6) 2. Should carrying capacity, K grow with population size (N) or with the rate of population growth? dk / dt = cN Unlike logistic, the carrying capacity is not constant. Population growth is negative, meaning, more people than resources can support, the maximum population size will go down What happens if N > K? (Cohen uses P rather than N for population size) Cohen's "Condorcet" model (starts with logistic) - dN/dt = rN (K-N) - dK/dt = c (dN/dt) As population grows, the carrying capacity goes up - Population growth rate growing, things will change and more time to develop Human population is based on knowledge NOT resources Why did Cohen assume that the maximum population size (K) increased in proportion to population growth rate not population size? -
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 06/20/2011 for the course EHJ EHJ351 taught by Professor Peterabrams during the Spring '11 term at University of Toronto.

Page1 / 2

January 27, 2011 - The roles of behavior culture in...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online